Also Tuesday, Juror No. 6 sent a note to the judge, saying, "I need to know when will this end."

The triallost Juror No. 2when she slipped on the ice on her way to court last Wednesday.

The final six members then settled in for the final witness in the case.

"We're still confident that the ones who are remaining are paying attention. They're taking notes and they're very attentive. So we'll get a fair and just verdict, I have no doubt about that," Gordon said.

The last person to take the stand was defense expert Joe Key, who was hired by Baltimore County and who, along with Officer Royce Ruby, is fighting the wrongful death civil suit filed by Gaines' family.

Key is an expert in ballistics and police use of force. He said he determined that Ruby's actions were "objectively reasonable" and that he did exactly what SWAT is trained to do.

In determining if use of force was justified, Key said the only opinion that matters is Ruby's, which drew strong pushback from the plaintiffs.

"The only individual that knows why he shot Korryn Gaines is Officer Ruby," Key said.

Key said depositions from "the other officers didn't help me determine the reason those shots were fired."

"That's about as dangerous a situation that police officers face. It's fraught with peril, potentially seriously dangerous to the officers," Key said.

The plaintiffs, also represented by attorney Ken Ravenell, over the last three weeks, have refuted Ruby's story based on testimony from six fellow officers who were at the scene at the time of the shooting. The officers said under oath that they were not in Gaines' line of fire as she held a rifle and they never felt unsafe.

"It's definitely going to be a duel. Mr. Key is a wily expert who has been testifying in courts for the last 40 years. He knows his way around the courtroom," Gordon said. "I think that the evidence that we've been presenting thus far certainly neutralizes, if not nullifies, Ruby."